Have a look
here for what you want, Fishfish.
Complete plans, all you have to do is trace the patterns on the ply, cut them, assemble the panels with nylon ties, some glass tape, a bit of epoxy and there you are, They are good designs. Waiting for the paint to dry is what takes the longest!
I have built a couple of the boats and canoes and they are very easy to build and cheap as well. You can use cheap ply, soft wood and ordinary house paint and because they don't spend that much time in the water, will last quite a while, as long as you don't let them fill up with water during the winter!!!